Global Navigation Satellite Systems Engineering, Policy, and Design
There has been much discussion of the need for resilient PNT over the past few years as dependencies have grown and an evolving threat matrix has become more active. As a nation, we need a measured and cost-effective response commensurate with the level of threats and the possible consequences.
The European Commission and the European Space Agency (ESA) selected Leonardo’s hydrogen atomic clocks for Galileo Second Generation.
By Inside GNSS
Tallysman Wireless announced its new eXtended Filtering (XF) features to the TW3900 series of Accutenna precision antennas. The XF feature is designed to mitigate interference from all near-band signals.
By Inside GNSS
The future-oriented Navigation Technology Satellite-3 (NTS-3) spacecraft has taken one more step towards its in-space demonstration, scheduled for 2023. The satellite bus that will carry it has arrived at L3Harris Technologies of Palm Bay, Florida, delivered by Northrop Grumman Corporation.
By Inside GNSS
In the beginning, GPS was envisioned as a military program. A sign on the wall in the Joint Program Office where the system came into being during the early 1970s read: “The mission of this Program Office is to:
A Department of Homeland (DHS)-chartered May 2021 report concludes that PNT threat and resilience concerns are not as dire as some have made them out to be, and that funds for backup could be spent elsewhere. Why this runs counter to other recent government reports is not clear, nor is the fallout from this divergence of Congressionally mandated views. The Department of Transportation has distanced itself a bit from this report by the RAND Corporation—and even its issuer, the DHS, seems to have done so.
BAE Systems selected Spirent Federal Systems to provide a controlled reception-pattern antenna (CRPA) test system to support M-Code military GPS technology development.
By Inside GNSS
BAE Systems, Inc. received the first contract from the Space and Missile Systems Center’s Space Production Corps to deliver M-Code Military GPS User Equipment (MGUE) to Germany.
By Inside GNSS
The French company Geoflex demonstrated GNSS corrections-driven centimetric positioning in Brazzaville, Republic of Congo on July 8, at the national Stadium Alphonse Massamba-Debat. The demo employed a dual-frequency GNSS chipset receiving GPS and Galileo signals and the Geoflex corrections service via the Nigerian NIGCOMSAT-1R satellite on L Band
By Inside GNSS
The Air Force Strategic Development Planning & Experimentation Office demonstrated fused PNT technologies within an AgilePod during six successful Phase I sorties on an airborne testbed in Centennial, Colorado in April.
By Inside GNSS
An interview with Ignacio Fernández Hernández, Galileo Authentication and High Accuracy Service Manager, European Commission.
By Peter Gutierrez
Testing of the first pair of Galileo Batch 3 satellites at the European Space Research and Technology Centre (ESTEC) was completed in April, and they are now in storage on site. Three more new Galileo satellites have since arrived from OHB in Germany
By Inside GNSS
Iridium Communications Inc. received a research and development contract worth up to $30 million from the United States Army to develop a payload to be hosted on small satellites that supports navigation systems, guidance and control for GPS and GPS-denied precision systems.
By Alan Cameron
